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1. UCI274D - Technical Data Sheet

2. UCI274D
SPECIFICATIONS & OPTIONS
STANDARDS WINDINGS & ELECTRICAL PERFORMANCE
Newage Stamford industrial generators meet the All generator stators are wound to 2/3 pitch. This
requirements of BS EN 60034 and the relevant section eliminates triplen (3rd, 9th, 15th …) harmonics on the
of other international standards such as BS5000, VDE voltage waveform and is found to be the optimum design
0530, NEMA MG1-32, IEC34, CSA C22.2-100, AS1359. for trouble-free supply of non-linear loads. The 2/3 pitch
Other standards and certifications can be considered on design avoids excessive neutral currents sometimes
request. seen with higher winding pitches, when in parallel with
the mains. A fully connected damper winding reduces
VOLTAGE REGULATORS oscillations during paralleling. This winding, with the 2/3
pitch and carefully selected pole and tooth designs,
SX460 AVR - STANDARD ensures very low waveform distortion.
With this self excited control system the main stator
supplies power via the Automatic Voltage Regulator TERMINALS & TERMINAL BOX
(AVR) to the exciter stator. The high efficiency Standard generators are 3-phase reconnectable with 12
semiconductors of the AVR ensure positive build-up ends brought out to the terminals, which are mounted on
from initial low levels of residual voltage. a cover at the non-drive end of the generator. A sheet
The exciter rotor output is fed to the main rotor through a steel terminal box contains the AVR and provides ample
three phase full wave bridge rectifier. This rectifier is space for the customers' wiring and gland
protected by a surge suppressor against surges caused, arrangements. It has removable panels for easy
for example, by short circuit. access.
AS440 AVR SHAFT & KEYS
With this self-excited system the main stator provides All generator rotors are dynamically balanced to better
power via the AVR to the exciter stator. The high than BS6861:Part 1 Grade 2.5 for minimum vibration in
efficiency semi-conductors of the AVR ensure positive operation. Two bearing generators are balanced with a
build-up from initial low levels of residual voltage. half key.
The exciter rotor output is fed to the main rotor through a
three-phase full-wave bridge rectifier. The rectifier is INSULATION/IMPREGNATION
protected by a surge suppressor against surges caused, The insulation system is class 'H'.
for example, by short circuit or out-of-phase paralleling. All wound components are impregnated with materials
The AS440 will support a range of electronic and processes designed specifically to provide the high
accessories, including a 'droop' Current Transformer build required for static windings and the high
(CT) to permit parallel operation with other ac mechanical strength required for rotating components.
generators.
QUALITY ASSURANCE
MX341 AVR Generators are manufactured using production
This sophisticated AVR is incorporated into the Stamford procedures having a quality assurance level to BS EN
Permanent Magnet Generator (PMG) control system. ISO 9001.
The PMG provides power via the AVR to the main
exciter, giving a source of constant excitation power The stated voltage regulation may not be maintained in
independent of generator output. The main exciter the presence of certain radio transmitted signals. Any
output is then fed to the main rotor, through a full wave change in performance will fall within the limits of
bridge, protected by a surge suppressor. The AVR has Criteria 'B' of EN 61000-6-2:2001. At no time will the
in-built protection against sustained over-excitation, steady-state voltage regulation exceed 2%.
caused by internal or external faults. This de-excites the
machine after a minimum of 5 seconds.
An engine relief load acceptance feature can enable full
load to be applied to the generator in a single step.
If three-phase sensing is required with the PMG system
the MX321 AVR must be used.
We recommend three-phase sensing for applications
with greatly unbalanced or highly non-linear loads.
MX321 AVR
The most sophisticated of all our AVRs combines all the NB Continuous development of our products entitles us
features of the MX341 with, additionally, three-phase to change specification details without notice, therefore
rms sensing, for improved regulation and performance. they must not be regarded as binding.
Over voltage protection is built-in and short circuit
current level adjustments is an optional facility. Front cover drawing typical of product range.
2

3. UCI274D
WINDING 311
CONTROL SYSTEM SEPARATELY EXCITED BY P.M.G.
A.V.R. MX321 MX341
VOLTAGE REGULATION ± 0.5 % ± 1.0 % With 4% ENGINE GOVERNING
SUSTAINED SHORT CIRCUIT REFER TO SHORT CIRCUIT DECREMENT CURVES (page 7)
CONTROL SYSTEM SELF EXCITED
A.V.R. SX460 AS440
VOLTAGE REGULATION ± 1.0 % ± 1.0 % With 4% ENGINE GOVERNING
SUSTAINED SHORT CIRCUIT SERIES 4 CONTROL DOES NOT SUSTAIN A SHORT CIRCUIT CURRENT
INSULATION SYSTEM CLASS H
PROTECTION IP23
RATED POWER FACTOR 0.8
STATOR WINDING DOUBLE LAYER CONCENTRIC
WINDING PITCH TWO THIRDS
WINDING LEADS 12
STATOR WDG. RESISTANCE 0.044 Ohms PER PHASE AT 22°C SERIES STAR CONNECTED
ROTOR WDG. RESISTANCE 1.26 Ohms at 22°C
EXCITER STATOR RESISTANCE 20 Ohms at 22°C
EXCITER ROTOR RESISTANCE 0.091 Ohms PER PHASE AT 22°C
R.F.I. SUPPRESSION BS EN 61000-6-2 & BS EN 61000-6-4,VDE 0875G, VDE 0875N. refer to factory for others
WAVEFORM DISTORTION NO LOAD < 1.5% NON-DISTORTING BALANCED LINEAR LOAD < 5.0%
MAXIMUM OVERSPEED 2250 Rev/Min
BEARING DRIVE END BALL. 6315-2RS (ISO)
BEARING NON-DRIVE END BALL. 6310-2RS (ISO)
1 BEARING 2 BEARING
WEIGHT COMP. GENERATOR 431 kg 450 kg
WEIGHT WOUND STATOR 141 kg 141 kg
WEIGHT WOUND ROTOR 149.37 kg 138.41 kg
WR² INERTIA 1.1962 kgm2 1.1455 kgm2
SHIPPING WEIGHTS in a crate 458 kg 476 kg
PACKING CRATE SIZE 105 x 67 x 103(cm) 105 x 67 x 103(cm)
50 Hz 60 Hz
TELEPHONE INTERFERENCE THF<2% TIF<50
COOLING AIR 0.514 m³/sec 1090 cfm 0.617 m³/sec 1308 cfm
VOLTAGE SERIES STAR 380/220 400/231 415/240 440/254 416/240 440/254 460/266 480/277
VOLTAGE PARALLEL STAR 190/110 200/115 208/120 220/127 208/120 220/127 230/133 240/138
VOLTAGE SERIES DELTA 220/110 230/115 240/120 254/127 240/120 254/127 266/133 277/138
kVA BASE RATING FOR REACTANCE
114 120 114 N/A 131.3 137.5 137.5 146.3
VALUES
Xd DIR. AXIS SYNCHRONOUS 2.17 2.06 1.82 - 2.52 2.36 2.16 2.11
X'd DIR. AXIS TRANSIENT 0.18 0.18 0.16 - 0.21 0.20 0.18 0.17
X''d DIR. AXIS SUBTRANSIENT 0.12 0.11 0.10 - 0.15 0.14 0.13 0.12
Xq QUAD. AXIS REACTANCE 1.39 1.32 1.17 - 1.49 1.39 1.28 1.25
X''q QUAD. AXIS SUBTRANSIENT 0.16 0.16 0.14 - 0.21 0.20 0.18 0.17
XL LEAKAGE REACTANCE 0.07 0.06 0.06 - 0.07 0.07 0.06 0.06
X2 NEGATIVE SEQUENCE 0.14 0.13 0.12 - 0.17 0.16 0.15 0.14
X0 ZERO SEQUENCE 0.09 0.08 0.07 - 0.10 0.09 0.09 0.08
REACTANCES ARE SATURATED VALUES ARE PER UNIT AT RATING AND VOLTAGE INDICATED
T'd TRANSIENT TIME CONST. 0.031 s
T''d SUB-TRANSTIME CONST. 0.01 s
T'do O.C. FIELD TIME CONST. 0.85 s
Ta ARMATURE TIME CONST. 0.0073 s
SHORT CIRCUIT RATIO 1/Xd
3

4. UCI274D
50 Winding 311
Hz THREE PHASE EFFICIENCY CURVES
4

5. UCI274D
60 Winding 311
Hz THREE PHASE EFFICIENCY CURVES
5

6. UCI274D
Winding 311
Locked Rotor Motor Starting Curve
50
Hz
MX SX
346V 380V 400V 415V 346V 380V 400V 415V
30 30
25 25
.
.
20 20
P E R C E N T T R A N S IE N T V O L T A G E D IP
P E R C E N T T R A N S IE N T V O L T A G E D IP
15 15
10 10
5 5
0 0
0 50 100 150 200 250 300 350 400 0 50 100 150 200 250 300 350
LOCKED ROTOR kVA LOCKED ROTOR kVA
60
Hz
MX SX
380V 416V 440V 460V 480V 380V 416V 440V 460V 480V
30 30
25 25
.
.
20 20
P E R C E N T T R A N S IE N T V O L T A G E D IP
P E R C E N T T R A N S IE N T V O L T A G E D IP
15 15
10 10
5 5
0 0
0 50 100 150 200 250 300 350 400 450 500 550 0 50 100 150 200 250 300 350 400 450
LOCKED ROTOR kVA LOCKED ROTOR kVA
6

7. UCI274D
Three-phase Short Circuit Decrement Curve. No-load Excitation at Rated Speed
Based on star (wye) connection.
50
Hz 10000
SYMMETRICAL
ASYMMETRICAL
1000
CURRENT (Amps)
100
10
0.001 0.01 0.1 1 10
TIME (secs)
Sustained Short Circuit = 500 Amps
60
Hz
10000
SYMMETRICAL
ASYMMETRICAL
1000
CURRENT (Amps)
100
10
0.001 0.01 0.1 1 10
TIME (secs)
Sustained Short Circuit = 630 Amps
Note 1 Note 2
The following multiplication factors should be The following multiplication factor should be used to convert the
used to adjust the values from curve between values calculated in accordance with NOTE 1 to those applicable
time 0.001 seconds and the minimum current to the various types of short circuit :
point in respect of nominal operating voltage :
50Hz 60Hz 3-phase 2-phase L-L 1-phase L-N
Voltage Factor Voltage Factor Instantaneous x 1.00 x 0.87 x 1.30
380v X 1.00 416v X 1.00 Minimum x 1.00 x 1.80 x 3.20
400v X 1.07 440v X 1.06 Sustained x 1.00 x 1.50 x 2.50
415v X 1.12 460v X 1.12 Max. sustained duration 10 sec. 5 sec. 2 sec.
480v X 1.17 All other times are unchanged
The sustained current value is constant irrespective
of voltage level
Note 3
Curves are drawn for Star (Wye) connected machines. For other
connection the following multipliers should be applied to current
values as shown :
Parallel Star = Curve current value X 2
Series Delta = Curve current value X 1.732
7

8. UCI274D
Winding 311 / 0.8 Power Factor
RATINGS
Class - Temp Rise Cont. F - 105/40°C Cont. H - 125/40°C Standby - 150/40°C Standby - 163/27°C
Series Star (V) 380 400 415 440 380 400 415 440 380 400 415 440 380 400 415 440
50 Parallel Star (V) 190 200 208 220 190 200 208 220 190 200 208 220 190 200 208 220
Hz Series Delta (V) 220 230 240 254 220 230 240 254 220 230 240 254 220 230 240 254
kVA 100.0 100.0 100.0 N/A 114.0 120.0 114.0 N/A 121.0 127.0 121.0 N/A 125.0 130.0 125.0 N/A
kW 80.0 80.0 80.0 N/A 91.2 96.0 91.2 N/A 96.8 101.6 96.8 N/A 100.0 104.0 100.0 N/A
Efficiency (%) 90.9 91.3 91.5 N/A 90.3 90.6 91.1 N/A 90.0 90.3 90.8 N/A 89.8 90.2 90.7 N/A
kW Input 88.0 87.6 87.4 N/A 101.0 106.0 100.1 N/A 107.6 112.5 106.6 N/A 111.4 115.3 110.3 N/A
Series Star (V) 416 440 460 480 416 440 460 480 416 440 460 480 416 440 460 480
60
Parallel Star (V) 208 220 230 240 208 220 230 240 208 220 230 240 208 220 230 240
Hz
Series Delta (V) 240 254 266 277 240 254 266 277 240 254 266 277 240 254 266 277
kVA 120.0 125.0 125.0 131.3 131.3 137.5 137.5 146.3 137.5 145.0 145.0 156.3 142.5 150.0 150.0 158.8
kW 96.0 100.0 100.0 105.0 105.0 110.0 110.0 117.0 110.0 116.0 116.0 125.0 114.0 120.0 120.0 127.0
Efficiency (%) 90.9 91.2 91.5 91.6 90.5 90.8 91.2 91.3 90.2 90.6 91.0 91.0 90.1 90.4 90.8 91.0
kW Input 105.6 109.6 109.3 114.7 116.1 121.1 120.6 128.2 122.0 128.0 127.5 137.4 126.5 132.7 132.2 139.6
DIMENSIONS
Barnack Road • Stamford • Lincolnshire • PE9 2NB
Tel: 00 44 (0)1780 484000 • Fax: 00 44 (0)1780 484100
© 2006 TD_UCI274D.GB_10.06_05_GB